2021 GMC Acadia Windshield Wipers Aren't Working

Troubleshooting Common Issues with Windshield Wipers on Your 2021 GMC Acadia and How to Fix Them

Find Repair Location
Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
75% chance it's the
Wiper Motor
0%
25% chance it's the
Switch
The most common reasons a 2021 GMC Acadia windshield wipers aren't working are broken wiper motor and issues with the switch.
  • Wiper Motor: A faulty wiper motor or a bad electrical connection can result in intermittent or non-functioning windshield wipers.
  • Switch: A faulty switch can result in intermittent or complete failure of the electrical component it controls, leading to malfunctioning systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2021 GMC Acadia windshield wipers aren't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Inability to control the windshield wipers comes in several forms, and they are all indicative of windshield wiper switch failure. The windshield wipers may not work in all settings, may not turn on when requested, may not move to their parked position when turning off, or the washer pumps may or may not run at random. This is a general list of symptoms, but failure of anything the windshield wiper switch controls will indicate the need for testing the windshield wiper and washer switch.

A failed windshield wiper motor will do one of two things in the event of failure. First, it can intermittently work, meaning when the wiper switch is turned on, the windshield wipers may activate, and run for a random amount of time. This may happen at random, or change with a bump. Lastly, the windshield wipers could show no signs of activity, indicating motor failure.

The moment water touches the windshield, you know if you need new windshield wiper blades. If your wiper blades are torn, cracked, hard, or brittle, it is time for replacement. Wipers should also be replaced if the wiper blades only smear water around, seem to make a mess, streak the windshield, and miss large patches. If you are unhappy with the current wiper blades on your vehicle, this is a very economical change to make.

Windshield wiper arms will be replaced mainly for aesthetic reasons or damage. If the windshield arms become bent or rusted, the windshield wipers may not contact the windshield at the proper angle, or there may be no contact at all. Also, the sun will take a toll on these parts after years of use, and fading or clear coat peeling will result, not to mention rust.

What are the steps to diagnose the windshield wiper issue on a 2021 GMC Acadia?

To effectively diagnose a windshield wiper issue on a 2021 GMC Acadia, it’s essential to adopt a systematic approach that prioritizes simpler fixes before delving into more complex diagnostics. Start by checking the fuse related to the windshield wipers, as a blown fuse is a common issue that can easily disrupt their function. If the fuse is intact, inspect the wiper blades for any signs of wear or damage, since deteriorated blades can lead to poor visibility and ineffective wiping. Should the blades be in good condition, the next step is to examine the wiper motor for any visible signs of malfunction or damage that could prevent operation. Additionally, ensure that the wiper linkage, which connects the motor to the wiper arms, is intact and functioning properly, as any disconnection can hinder performance. Lastly, test the wiper switch to verify it is sending the correct signals to the motor; a faulty switch can also be a culprit in wiper failures. By following this methodical process, you can efficiently identify and resolve the issue, ensuring your windshield wipers work effectively when you need them most.

What are the common problems that could cause the windshield wipers to stop working on a 2021 GMC Acadia?

When addressing the issue of windshield wipers not functioning on a 2021 GMC Acadia, it's crucial to identify the common problems that may be causing this malfunction. Start by inspecting the fuse, as a blown fuse in the fuse box is a frequent culprit that can easily be replaced. If the fuse is intact, the next step is to examine the wiper motor, which may be faulty and in need of repair or replacement. Additionally, consider the condition of the wiper blades; worn or damaged blades can hinder performance, making it essential to check and replace them if necessary. Another area to investigate is the wiper linkage, which connects the motor to the wiper arms; any breaks or disconnections here will prevent the wipers from operating. Lastly, a malfunctioning wiper switch could also be the source of the problem, and replacing it might restore functionality. By methodically checking these components, you can effectively troubleshoot and resolve the issue with your windshield wipers.

How urgent is it to repair the non-functioning windshield wipers on a 2021 GMC Acadia?

When it comes to the urgency of repairing non-functioning windshield wipers on a 2021 GMC Acadia, the implications are significant and multifaceted. First and foremost, safety is paramount; without functioning wipers, visibility during rain or snow is severely compromised, heightening the risk of accidents. Additionally, many jurisdictions mandate that vehicles must have operational windshield wipers, meaning that neglecting this repair could lead to legal repercussions. Beyond safety and legality, there is the risk of damaging the windshield itself; debris that would typically be cleared away can lead to scratches or other issues if left unattended. Finally, the convenience of having reliable wipers cannot be overstated, as they ensure a clear view during unexpected weather changes, enhancing overall driving comfort. Therefore, addressing the issue of non-functioning windshield wipers should be a top priority for any GMC Acadia owner to maintain safety, compliance, and vehicle integrity.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

2021 GMC Acadia Windshield Wipers Troubleshooting Guide